Havemeyer was born in March 1867 and was known as "Carley". He was the eldest boy of nine children born to Theodore Havemeyer and Emilie Havemeyer. His siblings included Nathalie Ida Blanche Havemeyer, who married John Mayer; Emily Blanche Havemeyer, who married Edward Clarkson Potter; Theodore Augustus Havemeyer, Jr.; Blanche Maximillian Havemeyer, who married William Butler Duncan, Jr.; Marie Ida Pauline Havemeyer, who married Perry Tiffany and H. F. Godfrey; Henry Osborne Havemeyer II, who became a major financier of Stephen Birch and the future Kennecott Copper Company; Theodora Havemeyer, who married Admiral Cameron Winslow; and Frederick Christian Havemeyer, who married Lillie Harriman, daughter of Oliver Harriman. His paternal grandparents were Frederick Christian Havemeyer Jr., who started the family business, and Sarah Louise Havemeyer. His maternal grandfather was Chevalier Charles Frederick de Loosey, the Austrian Consul to New York. His father and uncle, Henry Osborne Havemeyer, constructed "one of the most modern sugar refineries in the world." His father also co-founded the Newport Country Club, U.S. Amateur Championship and U.S. Open.
In 1892, Havemeyer and his wife were included in Ward McAllister's "Four Hundred", purported to be an index of New York's best families, published in The New York Times. Conveniently, 400 was the number of people that could fit into Mrs. Astor's ballroom.
Theodore Augustus Havemeyer III, who moved to Vancouver where he was involved in the lumber business and where he married Jeannette Aileen MacLean, daughter of Ewen Wainwright MacLean, in 1915. He was previously engaged to Vida Bispham, a daughter of David Bispham.
Charles Frederick Havemeyer Jr., a sailor who attended Harvard University and served in France during World War I with the U.S. Marine Corps. Charles raced in the British-American Cup match in 1923. Also in 1923, he married Ellen Randolph, a daughter of Edmund Randolph.
His father died on April 26, 1897 and left an estate valued at $4 million. On May 9, 1898, just ten minutes after playing with his son Teddy and while dressing for dinner, Havemeyer died from a gunshot wound in the head from a pistol at his home in Roslyn the age of 31. The suicide was never determined to be on purpose or an accident, although commonly believed to be an intentional suicide, no motive was ever determined. After a funeral at the Church of the Holy Innocents in Manhattan, he was buried at Green-Wood Cemetery in Brooklyn, New York. After his death, in December 1898, his widow gave birth to a second son, who she named after Charles. She later remarried to broker Frederick Ogden Beach Sr., who was known as "Beauty Beach" for his good looks, with whom she had two more sons. Later in February 1912, Camilla had her throat slashed at her Aiken home. Much to the surprise of both Camilla and Frederick, Beach was charged for attempted murder, although he was later acquitted. The culprit was never identified.
Descendants
Through his eldest son Teddy, he was,, the grandfather of Gloria Camilla MacLean Havemeyer. She married Clive John Fenwick Phillipps-Wolley, son of Lieutenant-Commander Clive Phillipps-Wolley and grandson of Clive Phillipps-Wolley, in 1936.